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svlad2 [7]
3 years ago
9

Mammals rose to prominence during the: question 4 answers precambrian paleozoic mesozoic cenozoic

Biology
1 answer:
Leno4ka [110]3 years ago
7 0
The best and most correct answer among the choices provided by the question is the fourth choice "cenozoic"


The other two are the Mesozoic and Paleozoic Eras. TheCenozoic<span> spans only about 65 million years, from the end of the Cretaceous </span>Period<span> and the extinction of non-avian dinosaurs to the present. The </span>Cenozoic<span> is sometimes called the Age of Mammals, because the largest land animals have been mammals during that time.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
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The hypothalamus regulates the ________.
Tresset [83]

Answer:

c. pituitary gland

Explanation:

The hypo(below) thalamus is an almond size structure located superiorly to the brainstem. it is located below the thalamus. Hence the name hypothalamus.

It is primary function is is to control the body homeostatic functions of sleeping and waking up, sex, thirst and hunger etc.

It performs these roles by serving as the primary link of the nervous system with the endocrine system. Pituitary gland is an example of  endocrine gland that secrets many hormones. (they are called endocrine because the hormones are secreted directly into the blood streams.

<u>Its activities are controlled by the nervous stimulation from hypothalamus. Therefore the instructions to secretes certain hormones to the post and anterior part of the pituitary gland depends on the hypothalamus.</u>

Growth hormones, oestrogen, and thyroid are examples of hormones of the pituitary glands.

7 0
3 years ago
1. Restriction enzymes are
padilas [110]
<span>1. Restriction enzymes are

A then C

2. Plasmids

can be used to insert DNA into bacteria


3. Name the technique used to increase a quantity of DNA.

PCR


4. What tool does one use to separate DNA fragments?

a Polyacrylamide gel

Hope this answers the question. Have a nice day.

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5 0
3 years ago
What is the difference between material resources and energy resources??
givi [52]
Mineral resources are solid, crystalline substances made inside the Earth. These include granite, marble, limestone and precious stones which are used for jewellery. Minerals are used to make all sorts of different things which we use every day.

Energy resources are things we can use to turn into electrical power. These include fossil fuels, nuclear, wind, water and solar power.
3 0
3 years ago
Which of the following would most likely occur if cattle lost the ability to maintain a colony of microorganisms in their digest
Liono4ka [1.6K]
Digestion of cellulose
4 0
3 years ago
Assume that in cattle a spotted coat is dominant to an even coat, short horns are dominant to long horns, and the traits for coa
kow [346]

Answer:

C. 1/4

Explanation:

Let's assume that the allele for the spotted coat is "S" and the one for the even coat is "s". The allele "L" gives short horns while the recessive allele "l" imparts long horns. The genotype of the cattle heterozygous for both traits would be SsLl. A cross between two heterozygous cattle would produce progeny in following phenotype ratio=

9 spotted coat and short horns: 3 even coat and short horns: 3 spotted coat and long horns: 1 even coat and long horns.

Therefore, the proportion of the progeny with long horns = 4/16= 1/4

8 0
4 years ago
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