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Sav [38]
3 years ago
6

The ________ oversees border safety and security (including immigration and customs); emergency preparedness; science-related co

ncerns pertaining to chemical, biological, and nuclear threats; and information and intelligence analysis and assessment.
Biology
1 answer:
AysviL [449]3 years ago
8 0
<span>The Department of Homeland Security oversees border safety and security (including immigration and customs); emergency preparedness; science-related concerns pertaining to chemical, biological, and nuclear threats; and information and intelligence analysis and assessment.</span>
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Which pair of objects will have the greatestforce of gravity between them
disa [49]

Answer:

what objects? because a dresser and a feather the answer would be dresser

Explanation:

4 0
3 years ago
Which type of blood vessel usually carries oxygen-rich blood
zalisa [80]

Answer:

Arteries

Explanation:

There are three main types of blood vessels: veins, arteries, and capillaries. Arteries are the blood vessels that carry the oxygenated blood from the heart to various body parts. Veins pick the deoxygenated blood and deliver it to the heart to be oxygenated.  

Arteries are the blood vessels with thick walls and no valves. Blood is pumped with higher pressure from the heart into arteries. The pulmonary artery is the only exception that carries deoxygenated blood from the right ventricle to the lungs for oxygenation.  

5 0
3 years ago
Suppose a drug is developed that blocks K+ leakage channels. The drug prevents ions from passing through those channels. If this
Sav [38]

Answer: 1. The resting membrane potential would become less negative (more positive).

Explanation:

Resting membrane potential is a voltage carried by a resting (non-signaling) neuron, or called as resting potential, across its membrane.  The resting potential is determined by ion concentration gradients across the membrane, and the permeability of the membrane to each ion form.  

In a resting brain, there are gradients of concentration across the Na+ and K+ membranes. Forces shift their gradients down through channels, resulting in a separation of charges that provides the potential for rest. The membrane is much more permeable to K+ than to Na+, so the resting potential is similar to K+'s potential for equilibrium.

Hence, the correct option is 1. The resting membrane potential would become less negative (more positive).

7 0
3 years ago
Which molecule would be the most affected by limited nitrogen?
stealth61 [152]

Answer:

The molecule that would be affected by 'limited nitrogen' is the myofibrillar proteins in muscle. Explanation: The myofibrils of the muscle have a number of protein molecules.

5 0
3 years ago
The molecules that make up living things are incredibly diverse due in part to the variety of possible carbon skeletons. Which o
Rom4ik [11]

I. triple bonds, III. rings and IV. branches

7 0
3 years ago
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