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Natalka [10]
3 years ago
8

Hard parts helped the animals to A) live on land B) swim freely C) feed and reproduce D) protect themselves

Biology
1 answer:
ExtremeBDS [4]3 years ago
7 0

I believe the correct answer is Option A and Option D

Hard parts such as skin, horns and paws help animals to survive on land and fight against the predators. For example, Rhinos have thick and hard skin which helps rhinos to bear high temperature, predator attacks and other environmental conditions.

Similarly, elephants have a huge body with thick skin which keeps them safe in their zone. Hard parts of body also help animals to fight against diseases as well.

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The hypothalamus is known to control the activity of the thyroid, which has traditionally been called the master endocrine gland
Dominik [7]

Answer: The statement is true

Explanation:

The hypothalamus is part of the Fore-brain responsible for the secretion of hormones from the pituitary gland.

This pituitary gland situated in the hypothalamus is traditionally called the MASTER ENDOCRINE GLAND, as it influence the activities of all other glands such as thyroid gland.

Thus, the hypothalamus bearing the pituitary gland is said to be in CONTROL of the activity of the thyroid, and ALSO the master endocrine gland.

3 0
2 years ago
Why is the weight of an object more on Earth than on the Moon?
MissTica

The correct answer is:

Gravitational pull is greater on earth . As weight = mass × g so we have more weights on earth than on moon.

Explanation:

This is because gravitational force is immediately proportional to the mass of an object. Greater the mass, greater will be the gravitational force exerted by it and thus, more will be our weight. As the moon has secondary mass than the earth, it has a lighter gravitational influence and hence, we weigh less on the moon.

3 0
3 years ago
Read 2 more answers
A scientist measures the circumference of acorns in a population of oak trees and discovers that the most common circumference i
Vinil7 [7]

Disruptive selection or diversifying selection describes the changes in population genetics where extreme values for a trait are favored over intermediate values.

So according to this definition, the conclusion can be derived as :

The most common circumference(s) to be after 10 generations of diversifying selection will be greater than 2 cm and less than 2 cm.

8 0
2 years ago
How did prostitutes prevent pregnancy in the old west?
bazaltina [42]

Hello, that is a very good question!


Back then there was no such thing as 'birth-control', hence they never actually prevented pregnancies, of course there were services that provided 'different' penetration but that could also result in pregnancies.


The popular method of not giving birth [prevent pregnancy] was to kill the baby while still carrying [termination], in other words have a miscarriage.

There many various methods during that time (herbs, beating, old cloth hanger).


Hope this helped,

j548831


8 0
3 years ago
In the example of adrenaline signaling used in the animation, the signal is amplified in the activation of G protein, the produc
ahrayia [7]

Answer:

the answer is 1,000,000

6 0
3 years ago
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