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pychu [463]
3 years ago
7

PLEASE HELP 30 POINTS IF I MARK YOU BRAINLIEST!!!!​

Biology
2 answers:
scoundrel [369]3 years ago
6 0
Th answer is the fourth one, migration makes finding necessary resources more likely.
Naya [18.7K]3 years ago
3 0

4th one

they travel to go where the season's right, which'll give them the best resources

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Bacteria are often helpful because they​
Alexus [3.1K]

Answer:

Yes it is helpful

Explanation:

Not only do we live in harmony with these beneficial bacteria, but they are actually essential to our survival. Good bacteria help our bodies digest food and absorb nutrients, and they produce several vitamins in the intestinal tract — including folic acid, niacin, and vitamins B6 and B12.

3 0
3 years ago
Breastfed infants typically are resistant to disease because of ________.
DochEvi [55]

Answer:

Passice immunity

Explanation:

Breast milk, produced by female mammals (including humans), besides being rich in fat and protein is full of IgA. IgA is the immunoglobulin (immune system signal proteins) that is present in body secretions, such as milk.

The baby that is fed from the mother's breast ingests these defense proteins that allow it to tolerate different pathogens and toxins.  

It is considered passive immunity, as it does not generate memory and depends on a continuous dose to maintain defense levels.

6 0
3 years ago
Drag the correct word from the left into the sentence on the right to complete each sentence. In anabolic reactions that involve
kkurt [141]

Answer:

The correct matches are:

  1. In anabolic reactions that involve the synthesis of a large molecule from smaller precursor molecules, NADH and ATP are consumed when they provide the needed electrons or energy.
  2. In catabolic reactions that involve the breakdown of a molecule into smaller subunits, such as glucose to pyruvate, NADH and ATP are produced.
  3. In the reaction Pyruvate +NADH-Lactate +NAD, pyruvate is being reduced.
  4. In the reaction Pyruvate NADH-Lactate +NAD, NADH is being oxidized.

Explanation:

  • Being involved in synthesis, anabolic reactions require energy in the form of energy storing molecules such as NADH and ATP. Anabolic processes utilize energy produced by the catabolism of complex compounds.
  • Catabolic processes produce energy or energy storing compounds by breaking down complex substances into simpler ones. All steps of cellular respiration are catabolic processes since they generate energy in the form of ATP or energy yielding molecules such as NADH and FADH2.
  • Anaerobic respiration takes place during intense physical activity due to which adequate oxygen does not reach the cells. Insufficient oxygen shuttles the pyruvate molecules produced by glycolysis into the lactic acid pathway that reduces pyruvate into lactic acid.
  • Since, NADH is donating its H+, it is being oxidized to NAD+.
8 0
3 years ago
Now follow these directions to classify the insect specimens. Start by putting on your gloves and goggles. Then, using the force
dybincka [34]

The dichotomous key is an important tool to identify the species of living beings, with this tool it was possible to identify the proposed species, however, to understand this question, we need to know that.......

<h3>Dichotomous Key for Insects</h3><h3 />

This dichotomous key is a simplification and is used to find the order of most insects. But as in biology there is always someone or something to deny us, there are insects that defy this order 1.

Start by choosing between one of the two alternatives of option number 1 and go to the indicated number:

 

  1. - Obvious, membranous wings, sometimes covered with scales or fur:  - Wings absent or forewings thick and hiding membranous hindwings: 15
  2. Wings covered with small scales and proboscis-shaped mouthparts: LEPIDOPTERA
    - Wings not covered with scales, usually translucent. Mouthpiece is not a proboscis: 3
  3. - With a pair of wings: DIPTERA
    - With two pairs of wings: 4
  4. - Long, narrow wings, fringed with fur. Size 5 mm or less: THYSANOPTERA
    - Wings not narrow and fringed: 5
  5. - Abdomen with 2 or 3 long filaments. Small hindwings: EPHEMEROPTERA
    - Abdomen with short filaments or none. Full-sized hindwings: 6
  6. - Forewings clearly longer and with a larger area than the hind wings: - Four forewings as long as, or nearly as long as the hind wings and with a similar or smaller area: 10
  7. - Wings hairy, opaque, with long palps antennae as long as the body or longer: TRICHOPTERA
    - Transparent or translucent wings, hairless, palps short or absent, antennae shorter than the body: 8
  8. - Tarsus with 5 segments, usually with a wasp or bee face: HYMENOPTERA
    - Tarsus with 2 or 3 segments, without a bee or wasp face: 9
  9. - Sucking mouthpiece, nozzle starting at the back of the head. Small to large: HOMOPTERA
    - Chewing mouthpiece, without beak, length 7 mm or less: PSOCOPTERA
  10. - Head extended ventrally forming beak-shaped structure: MECOPTERA
    - Head not extended ventrally: 11
  11. - Very short antennae with thick fur and large eyes: ODONATA
    - Antennas not so short. Moderate to small eyes: 12
  12. - Hindwings wider than forewings. Cerci present: PLECOPTERA
    - Hindwings as wide or almost as wide as forewings.  

With this identification key we can taxonomically classify the 10 insects contained in the question, and with that we can discover the species we are studying.

Taxonomy is an important tool to better understand the species of living beings, their species diversity and their role in ecology.

Learn more about species diversity in brainly.com/question/13259455?referrer=searchResults

6 0
2 years ago
Which word has a similar denotation to the word skinny but a more positive connotation?
Len [333]

Answer:

I think slender is the answer

3 0
3 years ago
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