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stealth61 [152]
3 years ago
14

Can someone give me the number of deadly spiders in the united states

Biology
1 answer:
jarptica [38.1K]3 years ago
8 0

Answer: 3

Explanation:

The black widow, the hobo spider, and the brown recluse spider are all poisonous. They all have lethal venom.

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What region of the diencephalon is responsible for maintaining homeostasis?
Orlov [11]

Answer:

The correct answer is A. The region of the diencephalon that is responsible for maintaining homeostasis is the hypothalamus.

Explanation:

One of the main functions of the hypothalamus is to control the pituitary gland, an endocrine gland that participates in the regulation of various functions of the organism, many of them related to homeostasis (regulation of glycemia, osmolarity, etc).

6 0
3 years ago
What is the difference in the amino acid sequence between sickle cells vs. normal hemoglobin mrna molecules? how does this chang
AURORKA [14]
The hemoglobin holoenzyme (active enzyme) is a complex of an iron ion and 4 subunits- 2 hemoglobin alpha and two hemoglobin beta. People with sickle cell disease have mutated beta hemoglobins. The mutation is a single nucleotide exchange, that changes the 6th amino acid of  protein primary struture - a Glutamic acid into Valine. This one alteration changes the tree dimentional structure of hemoglobin beta so, that it forms lond fibres that disrupt the normal circular form of the red blood cells.
8 0
3 years ago
You've discovered a new plant species in which
valina [46]

Answer:

All the crossing will be like this after realizing it:

Explanation:

Gl x Gl

GG, Gl, Gl, ll

gl x gl

gg, Lg, Lg, LL

On the first crossing we'll have 50% Gl and both other genotypes will be 25%

On the second crossing we'll have 50% Lg and both other genotypes will be 25%.

6 0
3 years ago
For a project I needed to ask 25 people : do you think eating meat is bad for the environment?
Lelu [443]

Answer:

Yes (It's more inefficient)

Explanation:

in ecology there are things called primary producers (plants) that are eaten by primary consumers (cows and chickens) and then there are humans, secondary consumers, that eat cows and chickens for energy.

The further we move from eating primary producers the more inefficient we become in consuming energy. Meaning, it requires a lot more natural energy consumption to support a human that lives on meat only as compared to a human that eats plants only. this inefficiency only magnifies when communities practice unsustainable food methods.

There are sustainable ways to eat meat, but (at least in the US) our current conventions of meat production are unsustainable and environmentally destructive.

5 0
3 years ago
What type of tissue would be found in the epidermis and form the lining of internal organs such as the intestines
madreJ [45]

Epidermal tissue as this is what makes up the lining  

4 0
3 years ago
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