Why are index fossils useful for determining the age of other fossils or rock layers?
Answer:
yes
Explanation:
GIVING BRAINLIEST PLEASE HELP :')
A musk ox and the Alstroemeria flower have physical structures and organs that have similar functions. Provide two examples of similar structures or organs and describe how they have similar functions.
Explain at least one way in which the quantity and quality of water resources have been affected by human population growth. Predict how you think the water supply will be affected by continued human population growth. Support your response with appropriate evidence and scientific reasoning.
how many parts to a virus?
1
2
3
4
Answer:
1: Envelope protien
2: Envelope
3: Viral Genome
4: Nucleocapsid
EXTRA
5: Viral tegument
Explanation:
Carnivores and herbivores are both consumers. Which statement best describes how they differ from one another?
A) Carnivores produce all the energy they need
B) Carnivores only eat animals whereas herbivores only eat plants
C) Carnivores eat living organisms whereas herbivores eat organisms that have died
D) Carnivores obtain energy by eating food whereas herbivores obtain energy from sunlight
Answer:
Pretty sure it’s B.
Explanation:
Its most probably B because carnivores eat meat, and live animals have their own muscles and meat, while herbivores only eat plants, unlike carnivores.
genetically different cells produced in mitosis, meiosis, or both
Answer:
Meiosis
Explanation:
Mitosis is the splitting of cells giving two genetically identical daughter cells. Meiosis is the splitting of cells resulting in four unique daughter cells as they have half the dna.
Answer:
Meiosis
Explanation:
Mitosis is the splitting of cells giving two genetically identical daughter cells. Meiosis is the splitting of cells resulting in four unique daughter cells as they have half the dna.
Directions: Sort these words in these two categories.
Words: Agriculture, Disease Prevention, Herbicides and Pesticides, Mutations, Pharmaceuticals, and Transplants.
Categories: Positive Effects of Genetic Engineering and Negative Effects of Genetic Engineering.
Answer: Positive effects: Disease prevention, agriculture, transplants, pharmaceuticals
Negative: Herbicides, pesticides, mutations
Explanation:
Healthy human lungs look pink and spongy from the outside. The left lung is a little smaller than the right lung to make room for the heart. The lungs and heart are both protected by the rib cage. In the lungs, each main bronchus branches off into many smaller bronchi. The bronchi become smaller and smaller, and the smallest bronchi are called bronchioles. There are about 30,000 bronchioles in each lung, each about the same thickness as a strand of hair. The inhaled air eventually ends up in tiny air sacs called alveoli at the end of each bronchiole. There are about 300 million alveoli in each lung. They are covered with capillaries, tiny blood vessels that are only one cell thick. Oxygen travels from the alveoli through the capillaries to the bloodstream, heart and other cells.
Which of these best represents the progression of bronchi, bronchioles and alveoli in the lungs?
A
tree trunks that become smaller branches and twigs
B
a tight flower bud that has opened into a full bloom
C
whole apples that are sliced into separate wedges
D
a bridge that crosses two rivers
Which image shows water being used in industry?
Grass being watered by a sprinkler.
Water spraying over machinery.
Water being used to wash dishes.
HELP ME WITH THESE TWO QUESTIONS
Question One:
Some steps in cell division are shown below:
1. Chromosomes condense and pair up
2. Segments of DNA of sister chromatids twist and cross
3. Exchange of DNA occurs between chromosomes
4. Four daughter cells are created that are haploid
Which of the following steps is least likely to occur during meiosis 1?
Step 1
Step 2
Step 3
Step 4
Questions Two:
A few characteristics of a type of reproduction are shown below:
1. Occurs in all body cells
2. Two daughter cells are formed
3. Chromosomes arrange equally on either side of the equator
4. The daughter nuclei each have half the number of chromosomes as that of parent cells
5. Is necessary for sexual reproduction
Which of the above are characteristics of meiosis?
1, 2, and 3
1, 4, and 5
2, 3, and 4
3, 4, and 5
Answer:
The first one is A and the second one is B
You have a nice day now ✊
Which are two kinds of echinoderms that use tube feet for movement? sea cucumber and brittle star brittle star and sea star sea star and sea urchin sea urchin and brittle star
Answer:
Brittle Star
Explanation:
No explanation
diploid -> diploid in mitosis, meiosis, or both
Answer:
Both
Explanation:
Mitosis) Diploid cell - two identical daughter cells with the same number of chromosomes from the parent (2)
Meiosis) Diploid cell - four unique daughter cells with each half the number of chromosomes from the parent (1)
Please help I don't understand
Answer:
Im pretty sure its C. Hopefully.
Explanation:
What is the answer to number 2??
Answer:
Animalia
Fungi
Protista
I hope this helps <3
What are the substances?
Explanation:
Hi I need help in those two questions please don't type something that doesn't make sense for the points and have a good day
Answer:
enterocytes, Paneth cells, goblet cells, and neuroendocrine cells / Gastroesophageal Reflux Disease / Antacids, Histamine blockers, Proton pump inhibitors, and Prokinetic agents. / from the mouth to the anus / yes, the liver
one pore cell, one duct cell, one canal cell, and a fused pair of gland cells / Uremia / renal replacement therapy by hemodialysis, peritoneal dialysis, or kidney transplantation / kidneys and bladder / yes, the kidney
cilia cells, goblet cells, and basal cells / Asthma / Antileukotrienes or leukotriene modifiers, Cromolyn sodium, Inhaled corticosteroids, Long-acting inhaled beta2-agonists, Methylxanthines, Oral corticosteroids, and Immunomodulators / starts at the nose and mouth and continues through the airways and the lungs / yes, the lungs
Explanation:
other types of carbohydrates include starches and fiber are both made up of many sugar molecules. Do you think fiber and carbohydrates are attracted to water? Why or why not?
HOW DOES STRESS AFFECT YOUR FOCUS???
Hint: The shallower our breath, the less oxygen that reaches our brain, and the harder it is to focus.
1: When you are stressed you start breathing more deeply and makes it harder to focus.
2: When you are stressed more oxygen gets to your brain and makes it harder to focus.
3. When you are stressed you start breathing more deeply and that delivers more oxygen to your brain helps you focus.
4. none of these
Answer:
Ironically, stress does improve concentration for a very short period of time. This is due to the body releasing chemicals into the brain to help it focus and pushing adrenaline into the bloodstream in order to heighten the senses, which helps the body hone in and focus on tasks at hand.
Explanation:
3.
Which of the following is a renewable resource?
Question 3 options:
natural gas
uranium
biomass
coal
Answer:
coal because you can use it for fire a lot so you won't get cold and you can make torches to keep it bright.
Answer:
Biomass, this is what I remember learning.
i will give brainlst if the answer is right
Do you mind to help me plzzz?
What are advantages and disadvantages of sexual reproduction?
Please it's my last question
And please no links
True or False: multicellular organisms are made of different types of specialized cells
Answer: true i think
brainliest???
Explanation:
What is one example of wind erosion and one example of weathering caused by wind
Answer:
Wind and water cause small pieces of rock to break off at the side of a mountain. ... Example of erosion: Wind carries small pieces of rock away from the side of a mountain.
Explanation:
i need help
is it right to like girls
Answer:
love has no correct answer dude, love who you wanna love it doesnt matter the gender
Explanation:
How are traits passed to offspring?
Answer:
Explanation:
Well its all based on DNA which is a really strong part in your body along with every one else and your genes are what tell you what you look like ok so lets say your mom has brown eyes and your dad has blue eyes and your grandma has blue and your grandpa had blue you would be more prone to have blue eyes I hope this will help. :)
HELP ASAP
How does water help plants and animal cells to survive?
Animal use oxygen to produce water
Cytoplasm is made up largely of water
Chlorophylls is made up largely of water
Plants use oxygen to produce water
Answer:
B
Explanation:
Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. In eukaryotic cells, t
What is the goal of Meiosis 1?
Answer:
In meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells
Answer:
Meiosis I is the reduction division, and meiosis II is more similar to mitosis in that the sister chromatids are separated. The goal of meiosis I is to separate homologous chromosomes. The goal of meiosis II is to separate sister chromatids. In meiosis II, no DNA is duplicated as in prophase I of meiosis I.
Explanation:
How can plate tectonics contribute to evolution?
A.) separating plates can divide groups of a population
B.) radiation from plate tectonics can cause genetic change
C.) volcanic eruptions can cause species to become extinct
D.) The movement of plates forces some animals underground
Answer:
C.
Explanation:
how does the rock cycle support the explanation that "matter is never created or destroyed?"
Answer:
The chemical elements that make up minerals and rocks are not destroyed. This fact illustrates the principle of conservation of matter. The changes that take place in the rock cycle never destroy or create matter. The elements are just redistributed in other forms.
Explanation:
.
HELP ASAP
How do humans influence the balance of nature?
Humans can hunt second-order consumers
Humans can consume decomposers
Humans can build more homes
Humans can plant more trees
Answer:
Humans an hunt second-order consumers.