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Talja [164]
3 years ago
15

Many products and services were initially developed for space exploration. Which of these does NOT have a direct connection to s

pace exploration? A. X-ray machine B. freeze-dried food C. infrared ear thermometer D. portable cordless vacuum
Biology
2 answers:
cricket20 [7]3 years ago
7 0

Answer:

x-ray machine

Explanation:

madam [21]3 years ago
7 0

Answer:

The x-ray machine

Explanation:

Freeze dried food was developed with NASA. Food in space for the astronauts needed to have long shelf lives, be light, easy to pack, and easy to prepare.

The infrared ear thermometer was developed by Diatek and NASA using infrared astronomy technology to measure the infrared energy given off by the ear drum.

The portable cordless vacuum was developed by Black and Decker and NASA as a specialized drill to collect samples below the surface of  the moon.

The X-ray machine was invented in the 19th century, way before the space program and NASA.

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The bird in the photo is resting on the bison to cross the river. It's also utilizing the bison as a safety place for any alliga
miv72 [106K]

Answer:

commensalism

Explanation:

Commensalism is a symbiotic relationship in which one species benefits from the interaction and the other species is neither harmed nor helped. So the bird is being helped and the bison is being neither harmed nor helped.

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3 0
2 years ago
Which of the following is a covalent compound?
V125BC [204]

Answer:

Water is a covalent compound.

Explanation:

covalent compounds are individual molecules characterized by the sharing of electrons between two or more atoms. Two atoms with similar electronegativity will not exchange an electron from their outermost shell; the atoms instead share electrons so that their valence electron shell is filled.

Example:

Examples of compounds that contain only covalent bonds are methane (CH4), carbon monoxide (CO), Water (H2O) and iodine monobromide (IBr).

Properties:

1. At room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas.

2. Covalent compounds do not exhibit any electrical conductivity, either in pure form or when dissolved in water.

3. Covalent compounds have lower melting and boiling points.

5 0
2 years ago
Read 2 more answers
A diploid cell has 28 chromosomes. When meiosis occurs, how many chromosomes are there during Prophase I?
murzikaleks [220]

Answer:

The correct answer will be option-B

Explanation:

Meiosis is a way of cell division used by the organism to produce a large number of cells from a few parent cells. This is used to make the gametes of the body.

Meiosis produces four daughter cells from a single parent cell in two stages that is meiosis I and II. Each stage proceeds in four phases- prophase, metaphase, anaphase and telophase.

The reduction division of the chromosomes or the ploidy number takes place during anaphase I of meiosis I and not prophase I which is the initial phase of the division. Therefore, during prophase I the chromosome number of the cell remains the same.

Thus, Option-B is the correct answer.

7 0
3 years ago
HELP PLS!!!!!!!!!!!!
Ugo [173]
C. I believe this is correct
8 0
3 years ago
What is correct generalized chemical equation for photosynthesis?
loris [4]

Answer:

The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen. 00:00 00:00 Brought to you by Sciencing

6 0
2 years ago
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