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7nadin3 [17]
3 years ago
12

4

Biology
2 answers:
Gwar [14]3 years ago
6 0

Answer is Mammals first appeared Dinosaurs had become extinct.This statement is true.

patriot [66]3 years ago
5 0

Answer:

Mammals first appeared

Explanation:

The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.

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During periods of intense exercise, cells do not receive enough oxygen to perform the normal process of aerobic cellular respira
Wewaii [24]

Answer: for me the best option is D.

Explanation: lets explain this.

Cellular respiration begins with a process that divides the glucose within the cells making it readily available as a source of energy. This process can occur without oxygen (anaerobic respiration) or in the presence of oxygen (aerobic respiration). Anaerobic respiration generates more excess waste (lactate) than aerobic . Besides, high levels of lactate build within the muscle cells. Excess lactate slows the cellular respiratory process and is experienced as a burning sensation in the muscles if exercise continues.

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3 years ago
How does glucose turn into cellulose and starch and why?
Minchanka [31]

Answer:

they are very similar in what they are made of.

Explanation:

sorry

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3 years ago
Explain how scientists use geological time to determine the age of landforms
masya89 [10]

Answer:

o determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years

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5 0
3 years ago
Read 2 more answers
Question down below thanks
lilavasa [31]

Explanation:

X is the answer

3 0
3 years ago
A mutation in a gene results in an animal that cannot make a protein that allows muscles to contract which of these is most like
san4es73 [151]

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it will get weaker give water

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